Estimating yield curves of the U.S. Treasury securities: An interpolation approach

Feng Guo

Review of Financial Economics, 2019, vol. 37, issue 2, 297-321

Abstract: Following the approach of interpolation, this paper proposes the multiple exponential decay model to fit yield curves for both the U.S. TIPS market and the conventional Treasury security market. Several estimation methods, including the unconstrained/constrained nonlinear minimization, quadratic programming, and the iterative linear least squares, are applied to estimate the unknown parameters according to different curve‐fitting purposes. Comparisons between the proposed model and the alternatives show that the multiple exponential decay successfully (1) adapts to a variety of shapes associated with yield curves, (2) (partially) keeps in line with the economic interpretations of Nelson–Siegel summarized by Diebold and Li (), and (3) dominates the competing models in curve‐fitting performance measured by mean fitted‐price errors over the sample period. In addition, the exact specification of a nonparametric interpolation model is pinned down by applying three statistical tools, which enable us to jointly take into account validity, optimality, and parsimoniousness of the proposed model.

Date: 2019
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https://doi.org/10.1002/rfe.1039

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Persistent link: https://EconPapers.repec.org/RePEc:wly:revfec:v:37:y:2019:i:2:p:297-321

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